Play Mysterious for Free in Demo Mode

If you like the entire Victorian gothic thing—think foggy London alleyways, restless spirits, and flickering gas lamps—you really need to try Mysterious™. Pragmatic Play dropped this little horror gem back in February 2020.

The base game starts with a weird 4-reel setup and 256 ways to win. But don't get too comfortable, because this is a High Volatility slot. It can absolutely eat your bankroll if you are not careful, so budget wisely. However, the math holds up nicely with a solid RTP of 96.50%, which is fair.

Who is this game for? Definitely for players who get bored easily. The "Game Modes" feature is totally unique. You’ve got the Lord, the Lady, and the Baron, and they each act as different Wild modifiers that switch randomly while you spin. It keeps things super fresh. But the real magic happens in the Free Spins. The reels physically expand to six columns, shooting the ways-to-win up to 4,096. You even get to pick your own volatility style for the bonus. It’s creepy, sure, but the winning potential is dead serious.

Mysterious™ - Style, Graphics, and Animation

Visually, this slot is a powerful mood piece, a masterpiece of doom and horror. In the background we see a dark village with a full moon light and thick, rolling fog that chokes the gas lamps on the street corners. On a hill stands an imposing manor that reminds one of the famous scenes of legends like Frankenstein.

The character design—the Lord, the Lady, the Baron—is incredibly detailed, almost like oil paintings coming to life on the reels. And the sound design handles the rest. It’s a subtle, haunting melody mixed with the crack of thunder that actually makes you jump. It doesn't just look spooky; it feels cold.

Gameplay and Rules of Mysterious

First things first, the layout is just weird. You start out staring at this tight, 4-reel grid that actually feels a bit small. It gives you 256 ways to win, but don’t get too comfortable. The game is constantly changing. You don't need to worry about paylines, either. Just hit spin and hope the matching symbols line up next to each other.

The "rules" are dictated by who is watching you. In the base game, three different ghosts—the Lord, the Lady, and the Baron—take turns haunting the reels. They trigger randomly, swapping out your Wilds for Multipliers, Expanding symbols, or Infectious Wilds that spread like a virus across the board. It’s chaotic.

But then, the bonus hits, and the game breaks its own rules. The grid physically stretches open to 6 reels, the ways-to-win explode up to 4,096, and suddenly you aren't playing the same slot anymore. It’s crazy, but in the best way possible.

Mysterious™ - Symbols, Paytable & Payout

Before we reveal the full paytable, it’s vital to know the symbols that hold the key to your wins.

Mysterious™ features a thrilling mix of icons: the Premium Characters for the biggest wins, the Animal Icons for generous mid-tier payouts, and the classic Card Suits that keep your balance topped up.

Remember this crucial secret: Payouts scale dramatically once the reels expand during Free Spins, transforming good wins into truly legendary ones!

Mysterious™ - Bonus round and special features

Forget everything you know about standard base games because Mysterious™ is something way different and mindblowing. You aren't simply spinning; you're switching between three different "Ghost Modes" all the time: the Lord, the Lady, and the Baron. Each one messes with the Wilds in its own chaotic and unpredictable way.

• The Lady substitutes for all symbols except the other Wild symbols and the Free Spins symbol. When she lands, she can expand to reveal Mystery Piled Symbols. The Lady appears solely on reels 2, 3, and 4 during the base game.
• The Lord substitutes for all symbols except the other Wild symbols and the Free Spins symbol. If The Lord sign appears in a winning combination, it will show a randomly chosen multiplier to be added to the win. The multipliers can be 2x or 3x. In the base game, the Lord appears solely on reels 2, 3, and 4.
• The Baron: This is the one you really want to see. He doesn't just substitute for symbols; he infects them. When The Baron lands, he uses his power to turn vertically adjacent symbols into Wilds. He literally spreads wild symbols up and down the reel, creating a sudden block of wild coverage that can connect huge wins from the first reel to the last.

But the real freak show starts when you hit those Scatters.

The whole grid literally changes completely. It increases from four to six reels, and you're no longer playing with 256 chances to win; now, you have a whopping 4,096. And then, you have to choose your fate. Do you want Locking Multipliers? Every time a Clock symbol hits, your multiplier climbs—3x, 6x, all the way up—and it never resets. It just locks in. Or do you risk it all for the Wilds? They vanish after landing, haunting the screen invisibly, but they come back at the very end of the bonus round with a big final win. It’s genuinely tense, totally unpredictable, and exactly why you play.

How to play - Mysterious™

Getting started is super simple. You just choose your bet size—no paylines to fiddle with here—and hit spin on that weird 4-reel grid. You're basically just trying to line up matching symbols on adjacent reels, starting from the left.

But don't get too comfortable. You are really just grinding, waiting for those Scatters to land. When they do, the whole game grid rips open, expanding to six reels and 4,096 ways to win. It’s less about strategy and more about surviving the chaos until the board expands.

Mysterious™- Strategy and Tips

You can't really cheat the ghosts, but you can play smarter. Since the slot is high volatility your main challenge is to manage your bankroll wisely. You need to get those free spins, which expands the grid to 4,096 ways.

The best tip? When you finally trigger the bonus, pick the Locking Multipliers. It’s way less volatile than the Roaming Wilds and guarantees that your wins actually stack up over time. Patience is your only real weapon here.

Pros And Cons Of Mysterious™ Online Slot

Final Verdict - Should You Play It?

Honestly? Yes. If you can handle the stress. This isn't a chill game; it’s a high-volatility monster that will eat your budget if you aren't looking. But man, when those reels rip open to 4,096 ways and the multipliers lock in? It is an absolute rush. Play it for the vibes, stay for the payout.

Similar Slots To Try

Immortal Romance (Microgaming): The absolute king of gothic slots; same dark vibe, deep story.

Release the Kraken (Pragmatic Play): Different theme, but it uses the exact same random Wild modifiers.

Curse of the Werewolf Megaways (Pragmatic Play): Same developer, same horror energy, just added Megaways mechanics.

A Dark Matter (Microgaming): Visually, it’s a twin—creepy Victorian mansion and high volatility.

Testament (Play'n GO): Play this if you love the expanding reel mechanic in the bonus.

Frequently Asked Questions (FAQ) - Mysterious™

Is Mysterious™ a high volatility slot?

Yes it is High Volatility, so be prepared for some long dry spells between the big wins.

How do the reels work?

It starts as a 4-reel game with 256 ways to win, but during Free Spins, it expands to 6 reels and 4,096 ways.

What is the maximum win?

You can win up to 9,648x your total bet.

Can I buy the Free Spins?

Yes! You can pay 100x your stake to instantly trigger the bonus round if you don't want to wait for Scatters.

Which bonus option is better?

It depends on your style. Locking Multipliers are safer for consistent wins, while Roaming Wilds offer higher risk but huge potential at the end.